“retrospective study”的概念、定义、翻译、参考文献-科学参考

单词	retrospective study
释义	retrospective study Encyclopedia 理学临床试验的自适应性设计释 retrospective study观察性研究在自然状态下对研究对象的特征进行观察、记录，并对结果进行描述和对比分析的研究。 Mathematics retrospective study回溯研究
随便看	multiple cropping multiple cropping in China multiple cropping index multiple cropping in the world multiple cropping rotation multiple dark soliton multiple decision problem multiple degree of freedom vibration isolation multiple development multiple diffraction multiple dimensional soliton multiple disabilities multiple displacement amplification，MDA multiple divisor multiple-domain coupling analysis for MEMS multiple-dosage regimen multiple dosing administration pharmacokinetic analysis multiple drain mesh multiple dwelling unit，MDU multiple edge multiple-effect absorption refrigeration cycle multiple-effect evaporation multiple eigenvalue multiple electric aircraft multiple electron beam

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。